refactoring storage mechanism and add it to a new helper file named storage
update favorites
add a notification library 'gritter' and create notifications while using the favourite mechanism
fix that the last timeseries is not removed of the diagram
add favourite editing
Merge branch 'develop' into ecmwf
support multiple parameter constellation
Merge branch 'develop' into ecmwf
fix error in parameter constellation generation
Merge branch 'develop' into ecmwf